493 lines
11 KiB
C
493 lines
11 KiB
C
/* $NetBSD: wsfont.c,v 1.7 1999/05/18 21:51:58 ad Exp $ */
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/*-
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* Copyright (c) 1999 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Andy Doran.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: wsfont.c,v 1.7 1999/05/18 21:51:58 ad Exp $");
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#include "opt_wsfont.h"
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/time.h>
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#include <sys/malloc.h>
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#include <dev/wscons/wsdisplayvar.h>
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#include <dev/wscons/wsconsio.h>
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#include <dev/wsfont/wsfont.h>
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#undef HAVE_FONT
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#ifdef FONT_QVSS8x15
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#define HAVE_FONT 1
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#include <dev/wsfont/qvss8x15.h>
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#endif
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#ifdef FONT_GALLANT12x22
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#define HAVE_FONT 1
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#include <dev/wsfont/gallant12x22.h>
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#endif
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#ifdef FONT_LUCIDA16x29
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#define HAVE_FONT 1
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#include <dev/wsfont/lucida16x29.h>
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#endif
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/* Make sure we always have at least one font. */
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#ifndef HAVE_FONT
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#define HAVE_FONT 1
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#define FONT_BOLD8x16 1
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#endif
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#ifdef FONT_BOLD8x16
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#include <dev/wsfont/bold8x16.h>
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#endif
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/* Placeholder struct used for linked list */
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struct font {
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struct font *next;
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struct font *prev;
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struct wsdisplay_font *font;
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u_short lockcount;
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u_short cookie;
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u_short flg;
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u_char bitorder; /* XXX move to wsdisplay_font */
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u_char byteorder; /* XXX move to wsdisplay_font */
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};
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#define WSFONT_BUILTIN (0x01)
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#define WSFONT_STATIC (0x02)
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/* Our list of built-in fonts */
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static struct font *list, builtin_fonts[] = {
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#ifdef FONT_BOLD8x16
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{ NULL, NULL, &bold8x16, 0, 1, WSFONT_STATIC | WSFONT_BUILTIN, WSFONT_L2R, WSFONT_L2R },
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#endif
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#ifdef FONT_ISO8x16
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{ NULL, NULL, &iso8x16, 0, 2, WSFONT_STATIC | WSFONT_BUILTIN, WSFONT_L2R, WSFONT_L2R },
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#endif
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#ifdef FONT_COURIER11x18
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{ NULL, NULL, &courier11x18, 0, 3, WSFONT_STATIC | WSFONT_BUILTIN, WSFONT_L2R, WSFONT_L2R },
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#endif
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#ifdef FONT_GALLANT12x22
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{ NULL, NULL, &gallant12x22, 0, 4, WSFONT_STATIC | WSFONT_BUILTIN, WSFONT_L2R, WSFONT_L2R },
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#endif
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#ifdef FONT_LUCIDA16x29
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{ NULL, NULL, &lucida16x29, 0, 5, WSFONT_STATIC | WSFONT_BUILTIN, WSFONT_L2R, WSFONT_L2R },
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#endif
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#ifdef FONT_QVSS8x15
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{ NULL, NULL, &qvss8x15, 0, 6, WSFONT_STATIC | WSFONT_BUILTIN, WSFONT_R2L, WSFONT_L2R },
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#endif
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{ NULL, NULL, NULL, 0, WSFONT_L2R, WSFONT_L2R },
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};
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/* Reverse the bit order in a byte */
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static const u_char reverse[256] = {
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0x00, 0x80, 0x40, 0xc0, 0x20, 0xa0, 0x60, 0xe0,
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0x10, 0x90, 0x50, 0xd0, 0x30, 0xb0, 0x70, 0xf0,
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0x08, 0x88, 0x48, 0xc8, 0x28, 0xa8, 0x68, 0xe8,
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0x18, 0x98, 0x58, 0xd8, 0x38, 0xb8, 0x78, 0xf8,
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0x04, 0x84, 0x44, 0xc4, 0x24, 0xa4, 0x64, 0xe4,
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0x14, 0x94, 0x54, 0xd4, 0x34, 0xb4, 0x74, 0xf4,
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0x0c, 0x8c, 0x4c, 0xcc, 0x2c, 0xac, 0x6c, 0xec,
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0x1c, 0x9c, 0x5c, 0xdc, 0x3c, 0xbc, 0x7c, 0xfc,
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0x02, 0x82, 0x42, 0xc2, 0x22, 0xa2, 0x62, 0xe2,
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0x12, 0x92, 0x52, 0xd2, 0x32, 0xb2, 0x72, 0xf2,
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0x0a, 0x8a, 0x4a, 0xca, 0x2a, 0xaa, 0x6a, 0xea,
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0x1a, 0x9a, 0x5a, 0xda, 0x3a, 0xba, 0x7a, 0xfa,
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0x06, 0x86, 0x46, 0xc6, 0x26, 0xa6, 0x66, 0xe6,
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0x16, 0x96, 0x56, 0xd6, 0x36, 0xb6, 0x76, 0xf6,
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0x0e, 0x8e, 0x4e, 0xce, 0x2e, 0xae, 0x6e, 0xee,
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0x1e, 0x9e, 0x5e, 0xde, 0x3e, 0xbe, 0x7e, 0xfe,
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0x01, 0x81, 0x41, 0xc1, 0x21, 0xa1, 0x61, 0xe1,
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0x11, 0x91, 0x51, 0xd1, 0x31, 0xb1, 0x71, 0xf1,
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0x09, 0x89, 0x49, 0xc9, 0x29, 0xa9, 0x69, 0xe9,
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0x19, 0x99, 0x59, 0xd9, 0x39, 0xb9, 0x79, 0xf9,
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0x05, 0x85, 0x45, 0xc5, 0x25, 0xa5, 0x65, 0xe5,
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0x15, 0x95, 0x55, 0xd5, 0x35, 0xb5, 0x75, 0xf5,
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0x0d, 0x8d, 0x4d, 0xcd, 0x2d, 0xad, 0x6d, 0xed,
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0x1d, 0x9d, 0x5d, 0xdd, 0x3d, 0xbd, 0x7d, 0xfd,
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0x03, 0x83, 0x43, 0xc3, 0x23, 0xa3, 0x63, 0xe3,
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0x13, 0x93, 0x53, 0xd3, 0x33, 0xb3, 0x73, 0xf3,
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0x0b, 0x8b, 0x4b, 0xcb, 0x2b, 0xab, 0x6b, 0xeb,
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0x1b, 0x9b, 0x5b, 0xdb, 0x3b, 0xbb, 0x7b, 0xfb,
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0x07, 0x87, 0x47, 0xc7, 0x27, 0xa7, 0x67, 0xe7,
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0x17, 0x97, 0x57, 0xd7, 0x37, 0xb7, 0x77, 0xf7,
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0x0f, 0x8f, 0x4f, 0xcf, 0x2f, 0xaf, 0x6f, 0xef,
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0x1f, 0x9f, 0x5f, 0xdf, 0x3f, 0xbf, 0x7f, 0xff,
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};
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static struct font *wsfont_find0 __P((int));
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static void wsfont_revbit __P((struct wsdisplay_font *));
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static void wsfont_revbyte __P((struct wsdisplay_font *));
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/*
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* Reverse the bit order of a font
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*/
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static void
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wsfont_revbit(font)
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struct wsdisplay_font *font;
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{
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u_char *p, *m;
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p = (u_char *)font->data;
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m = p + font->stride * font->numchars * font->fontheight;
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while (p < m)
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*p++ = reverse[*p];
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}
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/*
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* Reverse the byte order of a font
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*/
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static void
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wsfont_revbyte(font)
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struct wsdisplay_font *font;
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{
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int x, l, r, nr;
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u_char *rp;
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if (font->stride == 1)
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return;
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rp = (u_char *)font->data;
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nr = font->numchars * font->fontheight;
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while (nr--) {
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l = 0;
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r = font->stride - 1;
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while (l < r) {
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x = rp[l];
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rp[l] = rp[r];
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rp[r] = x;
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l++, r--;
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}
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rp += font->stride;
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}
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}
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/*
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* Enumarate the list of fonts
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*/
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void
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wsfont_enum(func)
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void (*func) __P((char *, int, int, int));
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{
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struct font *ent;
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struct wsdisplay_font *font;
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int s;
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s = splhigh();
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for (ent = list; ent; ent = ent->next) {
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font = ent->font;
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func(font->name, font->fontwidth, font->fontheight,
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font->stride);
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}
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splx(s);
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}
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/*
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* Initialize list with WSFONT_BUILTIN fonts
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*/
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void
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wsfont_init(void)
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{
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static int again;
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int i;
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if (again)
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return;
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again = 1;
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for (i = 0; builtin_fonts[i].font; i++) {
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builtin_fonts[i].next = list;
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list = &builtin_fonts[i];
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}
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}
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/*
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* Find a font by cookie. Called at splhigh.
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*/
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static struct font *
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wsfont_find0(cookie)
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int cookie;
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{
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struct font *ent;
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for (ent = list; ent; ent = ent->next)
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if (ent->cookie == cookie)
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return (ent);
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return (NULL);
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}
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/*
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* Find a font.
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*/
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int
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wsfont_find(name, width, height, stride)
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char *name;
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int width, height, stride;
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{
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struct font *ent;
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int s;
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s = splhigh();
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for (ent = list; ent; ent = ent->next) {
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if (height && ent->font->fontheight != height)
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continue;
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if (width && ent->font->fontwidth != width)
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continue;
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if (stride && ent->font->stride != stride)
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continue;
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if (name && strcmp(ent->font->name, name))
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continue;
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splx(s);
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return (ent->cookie);
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}
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splx(s);
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return (-1);
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}
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/*
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* Add a font to the list.
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*/
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#ifdef notyet
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int
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wsfont_add(font, copy)
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struct wsdisplay_font *font;
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int copy;
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{
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struct font *ent;
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static int cookiegen = 666;
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int s;
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size_t size;
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/* Don't allow exact duplicates */
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s = splhigh();
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if (wsfont_find(font->name, font->fontwidth, font->fontheight,
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font->stride) >= 0) {
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splx(s);
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return (-1);
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}
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MALLOC(ent, struct font *, sizeof *ent, M_WSCONS, M_WAITOK);
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ent->lockcount = 0;
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ent->flg = 0;
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ent->cookie = cookiegen++;
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ent->next = list;
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ent->prev = NULL;
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/* Is this font statically allocated? */
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if (!copy) {
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ent->font = font;
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ent->flg = WSFONT_STATIC;
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} else {
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MALLOC(ent->font, struct wsdisplay_font *, sizeof *ent->font,
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M_WSCONS, M_WAITOK);
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memcpy(ent->font, font, sizeof(*ent->font));
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size = font->fontheight * font->numchars * font->stride;
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MALLOC(ent->font->data, void *, size, M_WSCONS, M_WAITOK);
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memcpy(ent->font->data, font->data, size);
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ent->flg = 0;
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}
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/* Now link into the list and return */
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list = ent;
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splx(s);
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return (0);
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}
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#endif
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/*
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* Remove a font.
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*/
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#ifdef notyet
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int
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wsfont_remove(cookie)
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int cookie;
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{
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struct font *ent;
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int s;
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s = splhigh();
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if ((ent = wsfont_find0(cookie)) == NULL) {
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splx(s);
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return (-1);
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}
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if ((ent->flg & WSFONT_BUILTIN) || ent->lockcount != 0) {
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splx(s);
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return (-1);
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}
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/* Don't free statically allocated font data */
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if (!(ent->flg & WSFONT_STATIC)) {
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FREE(ent->font->data, M_WSCONS);
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FREE(ent->font, M_WSCONS);
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}
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/* Remove from list, free entry */
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if (ent->prev)
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ent->prev->next = ent->next;
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else
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list = ent->next;
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if (ent->next)
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ent->next->prev = ent->prev;
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FREE(ent, M_WSCONS);
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splx(s);
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return (ent ? 0 : -1);
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}
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#endif
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/*
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* Lock a given font and return new lockcount. This fails if the cookie
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* is invalid, or if the font is already locked and the bit/byte order
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* requested by the caller differs.
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*/
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int
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wsfont_lock(cookie, ptr, bitorder, byteorder)
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int cookie;
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struct wsdisplay_font **ptr;
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int bitorder, byteorder;
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{
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struct font *ent;
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int s, lc;
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s = splhigh();
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if ((ent = wsfont_find0(cookie)) != NULL) {
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if (bitorder && bitorder != ent->bitorder) {
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if (ent->lockcount)
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return (-1);
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wsfont_revbit(ent->font);
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ent->bitorder = bitorder;
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}
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if (byteorder && byteorder != ent->byteorder) {
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if (ent->lockcount)
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return (-1);
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wsfont_revbyte(ent->font);
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ent->byteorder = byteorder;
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}
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lc = ++ent->lockcount;
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*ptr = ent->font;
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} else
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lc = -1;
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splx(s);
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return (lc);
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}
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/*
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* Get font flags and lockcount.
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*/
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int
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wsfont_getflg(cookie, flg, lc)
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int cookie, *flg, *lc;
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{
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struct font *ent;
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int s;
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s = splhigh();
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if ((ent = wsfont_find0(cookie)) != NULL) {
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*flg = ent->flg;
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*lc = ent->lockcount;
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}
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splx(s);
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return (ent ? 0 : -1);
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}
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/*
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* Unlock a given font and return new lockcount.
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*/
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int
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wsfont_unlock(cookie)
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int cookie;
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{
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struct font *ent;
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int s, lc;
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s = splhigh();
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if ((ent = wsfont_find0(cookie)) != NULL) {
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if (ent->lockcount == 0)
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panic("wsfont_unlock: font not locked\n");
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lc = --ent->lockcount;
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} else
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lc = -1;
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splx(s);
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return (lc);
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}
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